House for drying fish, &amp;c.



PATENTBD AUG. 2, 1904.

` H. N. HAUG.

HOUSE POR DRYING FISH; &o.

APPLIUATION FILED MAB. 28. 1903.

N0 MODE l H -l NITED STATES Patented August 2, 1904.

PATENT Fries.

HOUSE FOR DRYING FISH, &G.

SPECIFICATIN Iorming part of' Letters Patent 'n o. 766,186, dated August 2, 1904.

Application filed March 28,1903. Serial No. 150,020. 'No model.)

To (tl/Z ll'l/Om/ 'it Vm/frfy/ concern:

Be it known that I, HAAKON NikoLAi HAUG, engineer, a citizen of the Kingdom of Sweden and Norway, and a resident of the city of Christiania, Norway, have invented certain new and useful Improvements in Houses for Drying Fish and the Like, of which the following is a specification.

The method usually employed for producing dried fish consists in spreading out the gutted and cleaned fish and exposingit to the influence of the atmosphere, the drying' being' effected by means of the warm summer air. The drying therefore depends not only upon the weather, but also upon the season, as'it `cannot take place in the winter.

My invention relates to an improved drying-house in the several rooms of which the fish is suspended in order to be dried by means of a current of dry air at a propel' temperature passing through the said rooms. By this means the drying is rendered completely independent of the season or of wind and weather, so that a constant quantity of uniformly-dried fish can be delivered each day during the whole year. l also have found that the dry air in the drying-room destroys certain germs contained in the fish.

My invention is illustrated inthe accompanying drawings, in which- Figure l is a vertical sectional view on the line a 7;, Fig. 2, of a drying-house constructed according to my invention. Fig. Q is a hori- Zontal section on the line c d, Fig. l. Fig. 3 is a cross-section on the line fff looking from the right in Fig. 2, and Fig. 4r is a sectional view of a detail.

Through the drying-rooms l, in which the fish 3 is suspended with its flat side parallel to the longitudinal direction of the rooms, is passed a current of warm drying-air. It is found that in order to effect equal or uniform drying' it is of great importance that the temperature of the drying-rooms should be uniform and that the warm air-current should pass over all the fish with the same velocity. For this purpose the outeratmospheric airis introduced through holes 4, Fig. l, in the outer walls and passes into a heating-chamber 6, which is situated beneath the floor of the drying-room l and in which the air passes over a number of heating-tubes 5 1n order to pass at a temperature of 2OV to 30 centlgrade into one end of the drying-room through apertures 7, uniformly spaced in the floor. A portion of the air as it enters passes along the floor, and part of it rises tothe ceiling'. asindicated by the arrows in Fig. l. The air flows through the whole length of the drying-room and encounters the flat side of the lish 3, which is suspended on stands and from the ceiling'. and the air is drawn by means of a fan 8. Figs. 2 and 3, through holes 9 at the other end of the drying-room near the ceilingl and floor into an exhaust chamber from which through achannel l1 it passes. saturated with moisture, through the fan 8 out into the atmosphere.

ln the drawings l have shown two dryingroonis l l, arranged one at each end of the house, longitudinally in a line with each other. These rooms are separated by means of a partition-wall Q, (see Figs. 2 and 8,) one side of which (the left-hand side in Fig. forms an exhaustchamber 10, which communicates with the exhaust-passages 21, arranged near the ceiling' and lioor at both sides of thc wall Q. The said chamber 10 communicates through an opcning22 with the channel ll, leading to the fan 8. By this arrangement the two drying-rooms are provided with a common exhaust-chamber 10, with a fan b5, but with separate heating-chambers 6 at opposite ends of the rooms l.

ln this manner there is a constant current of air in the d rying-rooms. As the cold outer walls, however, would cause the temperature of the air in proximity to them to be lower than that in the middle of the drying-rooms 1, this loss of heat must be compensated for, and this l preferably do by arranging heating-tubes l2 along the outer walls, the heating-surfaces of the said tubes being suiiicient to make up for the loss of heat in the dryingrooms.

ln order to obtain an equal saturation of the air which flows through the drying'- rooms, all portions or strata of the air must pass the same quantity of lish. It is therefore important to distribute the lish equally IOO in the rooms. In. Fig. 2 three rows of suspension-stands 13, 14, and 15 are shown. The stands of' each row are out of' line with those of the next row, so as to alternate, as shown in Fig. 2, and the length of each of the stands 13 and 15 is half' that of the stands 14. In the same manner the fish is distributed over the ceiling. By this means each vertical stratum of' air which flows in a straight line through the rooms 1 is compelled to pass either two comparatively short stands andone long intervening space or one comparativelyA long stand and two short intervening spaces, and consequently pass in both cases over the same quantity of fish. The same action takes place with respect to the air fiowing near the Y ceiling.

The fish 3, which is previously gutted and spread open by means of pins, is suspended upon the stands and from the ceiling, the tail being' bent over and inserted between the top laths 16 of' the stands and laths 17, fixed thereto, and also between the ceiling and similar laths 17, as shown in Fig. 4. The fish are thus arranged in vertical rows, and beneath the lowermost row very moist fish can be placed on netting 18.

' in consisting of parallel and superposed members slightly separated from each other and extending in pairs in the direction of the flow of air and adapted to receive the fish-tails therebetween in a horizontal position.

In testimony whereof I have hereunto affiXed my signature, this 6th day of March,

i 1903, in the presence of two witnesses.

HAAKON NIKOLAI HAUG.

Witnesses RICHARD S'roKKE, AXEL LAHN. 

